Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 618 [Rate centres in NPA 618] [Dial plan for NPA 618]

NXX: 749

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
618-749 A Keyesport IL KYPTILXERS0  1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-749 0 Keyesport IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-749 1 Keyesport IL   073H TELNYX LLC 520   2020-07-13   
618-749 2 Keyesport IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-749 3 Keyesport IL   224C ONVOY, LLC 520   2021-04-05   
618-749 4 Keyesport IL   224C ONVOY, LLC 520   2018-07-29   
618-749 5 Keyesport IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      
618-749 6 Keyesport IL   224C ONVOY, LLC 520   2019-07-29   
618-749 7 Keyesport IL   508J CENTURYLINK COMMUNICATIONS, LLC 520   2016-01-22   
618-749 8 Keyesport IL   224C ONVOY, LLC 520   2019-07-29   
618-749 9 Keyesport IL   1183 CITIZENS TELECOM CO ILLINOIS-FRONTIER CITIZENS -IL 520      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.